LIVING-ROOM MASTER UNIT OF INTERCOM

摘要

PROBLEM TO BE SOLVED: To provide a living-room master unit of an intercom capable of increasing the kinds of embedded boxes which can be mounted with housings, and also capable of preventing strength degradation of the housings.;SOLUTION: In a screwing part 15 of a housing 1, a screw inserting hole 16 is formed by connecting two slots, a reinforcing plate 18 is arranged on the screw inserting hole 16 and a pair of guide walls guiding the sliding of the reinforcing plate 18 is configured by a vertical rib piece 23 and a lower side face 14 arranged to the left and the right of the screwing part 15. The guide walls include slipping-off preventive ribs 24 preventing the slipping-off of the mounted reinforcing plate 18 to the front, the reinforcing plate 18 can be inserted into the screwing part 15 in the lower part of the screwing part 15 and a slipping-preventive piece 26 preventing the slipping-off of the inserted reinforcing plate 18 is mounted.;COPYRIGHT: (C)2011,JPO&INPIT